On a new wiki titled 16-2 Thermochemistry Equations Worksheet Show work for 1 random question from 7-10 and just give the answers to the rest.
Equations q=m x cp xΔT (you will have this equation on the taks test. It is in the Thermochemistry section on the back of your periodic table.) If you melt/freeze: q=m x Hf If you boil/condense: q=m x Hv If your temperature changes and your state (solid, liquid, gas) changes, use multiple equations and add them together.
Worksheet
1) A 12 oz. can of soda weighs about 450 grams. How many joules are released when a can of soda is cooled from 25 °C
(room temperature) to 4 °C (the temperature of a refrigerator). the specific heat is 4.18 J / g°C.
2) How many joules are required to heat 250 grams of liquid water from 0 to 1000 °C? The specific heat of steam is 1.87 J / g°C.The specific heat of water is 4.18 J / g C. The Heat of vaporization is2260 J/g.
3) How many joules are required to melt 100 grams of water? The heat of fusion of water is 334 J/g.
4) How many joules are required to boil 150 grams of water? The heat of vaporization of water is 2260 J/g.
5) How many joules are required to heat 200 grams of water from 25 °C to 125°C? The specific heat of steam is 1.87 J / g°C. the specific heat of water is 4.18 J / g°C. The Heat of vaporization is2260 J/g.
6) How many joules are given off when 120 grams of water are cooled from 25°C to -250°C? The specific heat of ice is 2.09 J / g°C. the specific heat of water is 4.18 J / g°C. The heat of fusion of water is 334 J/g
7) How many joules are required to heat 75 grams of water from -85°C to 185°C? The specific heat of steam is 1.87 J / g°C. The specific heat of ice is 2.09 J / g°C. The specific heat of water is 4.18 J / g°C. The heat of fusion of water is 334 J/g.The heat of vaporization of water is 2260 J/g.
8) How many joules are required to heat a frozen can of juice (360 grams) from -5°C to 110°C? The specific heat of steam is 1.87 J / g°C. The specific heat of ice is 2.09 J/g°C. The specific heat of water is 4.18 J / g°C. The heat of fusion of water is 334 J/g.The heat of vaporization of water is 2260 J/g.
9) How many joules are released when 450 grams of water are cooled from 407°C to -9 °C The specific heat of steam is 1.87 J / g°C. The specific heat of ice is 2.09 J / g°C. The specific heat of water is 4.18 J / g°C. The heat of fusion of water is 334 J/g.The heat of vaporization of water is 2260 J/g.
10) How many joules are required to raise the temperature of 100 grams of water from -269°C (the current temperature of space) to 110 °C The specific heat of steam is 1.87 J / g°C. The specific heat of ice is 2.09 J / g°C. The specific heat of water is 4.18 J / g°C. The heat of fusion of water is 334 J/g.The heat of vaporization of water is 2260 J/g.
11) If a reaction absorbs heat from its surroundings, do the surroundings get colder or hotter? So does that make it exothermic or endothermic.
12) if a reaction gives off heat to its surroundings do the surroundings get colder or hotter? So does that make it exothermic or endothermic.
13) If a reaction uses heat, does that make heat a product or a reactant? Would it be on the left side or right side of the arrow in a chemical reaction? Would it be exothermic or endothermic?
14) if a reaction gives off heat, does that make heat a product or a reactant? Would it be on the left side or right side of the arrow in a chemical reaction? Would it be exothermic or endothermic?
Time Length
- 3 Days
InstructionsOn a new wiki titled 16-2 Thermochemistry Equations Worksheet Show work for 1 random question from 7-10 and just give the answers to the rest.
Equations
q=m x cp x ΔT (you will have this equation on the taks test. It is in the Thermochemistry section on the back of your periodic table.)
If you melt/freeze: q=m x Hf
If you boil/condense: q=m x Hv
If your temperature changes and your state (solid, liquid, gas) changes, use multiple equations and add them together.
Worksheet
1) A 12 oz. can of soda weighs about 450 grams. How many joules are released when a can of soda is cooled from 25 °C
(room temperature) to 4 °C (the temperature of a refrigerator). the specific heat is 4.18 J / g°C.
2) How many joules are required to heat 250 grams of liquid water from 0 to 1000 °C? The specific heat of steam is 1.87 J / g°C. The specific heat of water is 4.18 J / g C. The Heat of vaporization is 2260 J/g.
3) How many joules are required to melt 100 grams of water? The heat of fusion of water is 334 J/g.
4) How many joules are required to boil 150 grams of water? The heat of vaporization of water is 2260 J/g.
5) How many joules are required to heat 200 grams of water from 25 °C to 125°C? The specific heat of steam is 1.87 J / g°C.
the specific heat of water is 4.18 J / g°C. The Heat of vaporization is 2260 J/g.
6) How many joules are given off when 120 grams of water are cooled from 25°C to -250°C? The specific heat of ice is 2.09 J / g°C.
the specific heat of water is 4.18 J / g°C. The heat of fusion of water is 334 J/g
7) How many joules are required to heat 75 grams of water from -85°C to 185°C? The specific heat of steam is 1.87 J / g°C.
The specific heat of ice is 2.09 J / g°C. The specific heat of water is 4.18 J / g°C. The heat of fusion of water is 334 J/g. The heat of vaporization of water is 2260 J/g.
8) How many joules are required to heat a frozen can of juice (360 grams) from -5°C to 110°C?
The specific heat of steam is 1.87 J / g°C. The specific heat of ice is 2.09 J/g°C. The specific heat of water is 4.18 J / g°C. The heat of fusion of water is 334 J/g. The heat of vaporization of water is 2260 J/g.
9) How many joules are released when 450 grams of water are cooled from 407°C to -9 °C
The specific heat of steam is 1.87 J / g°C. The specific heat of ice is 2.09 J / g°C. The specific heat of water is 4.18 J / g°C. The heat of fusion of water is 334 J/g. The heat of vaporization of water is 2260 J/g.
10) How many joules are required to raise the temperature of 100 grams of water from -269°C (the current temperature of space) to 110 °C
The specific heat of steam is 1.87 J / g°C. The specific heat of ice is 2.09 J / g°C. The specific heat of water is 4.18 J / g°C. The heat of fusion of water is 334 J/g. The heat of vaporization of water is 2260 J/g.
11) If a reaction absorbs heat from its surroundings, do the surroundings get colder or hotter? So does that make it exothermic or endothermic.
12) if a reaction gives off heat to its surroundings do the surroundings get colder or hotter? So does that make it exothermic or endothermic.
13) If a reaction uses heat, does that make heat a product or a reactant? Would it be on the left side or right side of the arrow in a chemical reaction? Would it be exothermic or endothermic?
14) if a reaction gives off heat, does that make heat a product or a reactant? Would it be on the left side or right side of the arrow in a chemical reaction? Would it be exothermic or endothermic?